Fixes to Automatic UDEV generation

+ Removing blank vid & pids entries to avoid `invalid value` warnings
+ Changing incorrect syntax from `ATTR` to `ATTRS`
+ Adding `Release` build check to .pro to work around code syntax highlighting issue in QTcreator

OpenRGB.pro

@@ -1357,22 +1357,24 @@ unix:!macx {
     #   ie. QMAKE_EXTRA_TARGETS += udev_rules                                                   #
     #       PRE_TARGETDEPS      += udev_rules                                                   #
     #-------------------------------------------------------------------------------------------#
-    udev_rules.CONFIG       = no_check_exist
-    udev_rules.target       = 60-openrgb.rules
-    udev_rules.path         = $$PREFIX/lib/udev/rules.d/
-
-    exists($$udev_rules.target) {
-        message($$udev_rules.target " - UDEV rules file exists. Removing from build")
-        udev_rules.files    = $$udev_rules.target
-    } else {
-        message($$udev_rules.target " - UDEV rules file missing. Adding script to build")
-        #-------------------------------------------------------------------------------------------#
-        # This is a compiler config flag to save the preproccessed .ii & .s                         #
-        #   files so as to automatically process the UDEV rules and the Supported Devices           #
-        #-------------------------------------------------------------------------------------------#
-        QMAKE_CXXFLAGS+=-save-temps
-        udev_rules.extra    = $$PWD/scripts/build-udev-rules.sh $$PWD $$GIT_COMMIT_ID
-        udev_rules.files    = $$OUT_PWD/60-openrgb.rules
+    CONFIG(release, debug|release) {
+        udev_rules.CONFIG       = no_check_exist
+        udev_rules.target       = 60-openrgb.rules
+        udev_rules.path         = $$PREFIX/lib/udev/rules.d/
+    
+        exists($$udev_rules.target) {
+            message($$udev_rules.target " - UDEV rules file exists. Removing from build")
+            udev_rules.files    = $$udev_rules.target
+        } else {
+            message($$udev_rules.target " - UDEV rules file missing. Adding script to build")
+            #-------------------------------------------------------------------------------------------#
+            # This is a compiler config flag to save the preproccessed .ii & .s                         #
+            #   files so as to automatically process the UDEV rules and the Supported Devices           #
+            #-------------------------------------------------------------------------------------------#
+            QMAKE_CXXFLAGS+=-save-temps
+            udev_rules.extra    = $$PWD/scripts/build-udev-rules.sh $$PWD $$GIT_COMMIT_ID
+            udev_rules.files    = $$OUT_PWD/60-openrgb.rules
+        }
     }
 
     #-------------------------------------------------------------------------------------------#

scripts/build-udev-rules.sh

@@ -78,8 +78,14 @@ do
                 pid=${pid/0x/}
                 device_name=${device_name//[^[:alnum:][:blank:]]/}
 
-                udev_line=$(printf 'SUBSYSTEMS=="%s|hidraw", ATTR{idVendor}=="%s", ATTR{idProduct}=="%s", TAG+="uaccess", TAG+="%s"\n' ${type,,} ${vid,,} ${pid,,} ${device_name// /_})
-                echo -e "$udev_line" >>"$UDEV_FILE"
+                udev_line=$(printf 'SUBSYSTEMS=="%s|hidraw", ATTRS{idVendor}=="%s", ATTRS{idProduct}=="%s", TAG+="uaccess", TAG+="%s"\n' ${type,,} ${vid,,} ${pid,,} ${device_name// /_})
+                
+                #Check to ensure that the vid and pid are not blank
+                if [[ $vid = "" || $pid = "" ]]; then
+                    echo -e "Blank VID or PID Skipping: ${udev_line}"
+                else
+                    echo -e "$udev_line" >>"$UDEV_FILE"
+                fi
             done <<< "$text"
         done <<< "$detectors"
     fi